Window screen



Sept, 29, 1931.

J. JOHNSON WINDOW SCREEN Filed April 15. 1930 as as 3/ Inventor:

cfaseiihflcfoiawson,

Patented Sept. 29, 1931 rm-( TATE JoSErH E. .ToHnSor cE ROSLINDALE, MASSACHUSETTS WINDOW SCREEN Application filed April 15,

' This invention aims to provide an improved window screen-havingmeans for expediting and simplifyingthe putting on and taking off of the screen. i

" In the'accompanying drawings, wherein I have shown merely for illustrative purposes one embodiment of the invention:

Fig.- 1 is an inside elevation of 'a window casing with ahalf screen embodying this Tm invention shown slidably attached thereto;

I ig. 2 is a transverse section through the screen shown in 1 taken on the line 2 2 e of said figure; 7 Fig. 3 is an inside elevation of aewindow casing showing a full length screen-embodyingthis invention and attachedto said cas-' ing; and v y l Fig. '4 isa detail section taken on the line 4v4ofFig.3. In the particular embodiment ofiny invention selected for purposes' of illustration andshown in the drawings,'I provide, as shown particularlyin Figsal and 2,21 win: dow frame 1 having an outer casing provided withgrooves 3 formed along opposite adjacent sides thereof for receiving suitableguiding strips 4. The strips 4'are desirably formed of relatively thin, stiff metal doubled lengthwise to form afolded' edge'5 which protrude from the grooves 3. The edges 5 of .these strips which are formed byfolding the same longitudinally, as v,hereiiibefore stated, when pressed'closelytogether are in} serted in the slots, 3, and along opposed faces of said strips, which are inserted as aforesaid, the metal compo-singthe said strip isprof vided with Spurs 6 which extend outwardly from said opposite faces, andwhenthese strips are forced into the slots the said spurs effect a gripping actiontoprevent said strips from being too easily withdrawn from the slots, sufficient resiliency being inherent in thetfolded metal strips to provide alspreading action upon the two parts 7 and '8of the folds thereof to cause saidinetal strip toret'ain itshold and position in said slot.

Slidably arranged upon theguidemembers or strips 4 is a screen 9 of any suitable construction andhavi'ng'formed in one edge, herein the edge 10, a groove of sufficient depth 1930. Serial no; 444,467.

to receive a large portion of'the protruding portion of the'folded edge 5 and slide'freelyupon said strip. 7 v i The opposite edge or side of the screen is rabbeted at 11 to cooperate with the slot or'.

groove 13in permitting the screen to be ina serted" or removed from the frame or from' the guiding strips in "said frame, said screen frame being also-provided with a recess 12 to align with the'groove 13 at the opposite 6Q edge of thescreen. g Arranged at a plurality of'points along the groove 13 of the first-mentioned edge are helical springs 14 which are inserted at said plurality of points in holes 15fform'ed in said edge and 'wherein' said spring are secured, herein'by small brads'or-similar means' 15 which are 'driveninto the side of said screen, for example between the adjacent innercoils of said spring. The outer ends of said springs 14 are arranged to cooperate with the folded edge 5' of the adjacent guide strip so. as to exert pressure upon said screen toward the opposite or removable side of the window."

' Effectively to guide-the springs 14 along the folded edge 5 of the strips 4', I preferably provide a collar 16 which has a transverse "depression 17 in its outer'edgeto receive said folded edge 5 and serve as a guide to retain said screen in proper sliding position. The rim of the coller 16 is fiangedat- 18 and in any suitable manner is secured to theouter coils I ofthe spring 14, as for example by being screwed upon said flange in grooves 19. "The collar 16and spring 14 are loselyfitted with- 35 in the recesses 12 in the edge oft the screen and completely close said recesses to prevent mosquitoes, flies and the like from working into the recesses provided for said spring 14 around the edge 5 of the guide member 4.

The opposite edge of the screen is also pro-:

vided with a groove 20 to receive the folded edge 5 of the guide member 4 for that other side of the screen and guide said screen-during its sliding movements in the frame 1. d To provide a freer relative movement between the screen and guidestrip 4 I provide grooved rollers 21 pivoted at 22 within'the groove 20,"the grooves in said rollers being adapted to-insure the traveling of the'screen edge um 1 upon said guide strips 4E. Cooperating about the strip 28.

but upon rotating said rotatable member.

about 180 degrees the flattened side 24 will be broughtto a position aligning with the inner edge of the guide strip 4 and permit the screen to be removed from engagement with said guide member and said roller 21, after pressing said screen toward the left slightly to compress the spring 14 sufliciently to release the folded edge 5 from engagement with the groove ofsaid-roller 21. The screws '5 for securing the rotatable member in the rabbeted portion of said screen may also .be usedto prevent said rotatable member from rotating during the sliding operations of the' screen, this bein of the screw in the screen frame.

In Figs. 3 and l I have shown a slightly modified construction in whichthe window screen is shown asa full length screen 26 and is-therefore incapable of sliding movement effected by the tightening in the window frame 27. In this formit is not necessary to provide yielding means in one side of the screen, as shown at the left of Fig. 2, because said screen may be swung into place about a strip 28 which extends herein across the top of the window-frame and is arranged to fit into agroove 29 and hinge Both sides of the screen 26 are, however, rabbeted as shown at 30 and 'when the screen is swung into place about the pivoting strip 28 the rabbeted port-ions'of said screen are adapted to seat against the guide strips 31 and 32 at opposite sides respectively of the window frame, and after said screen has been swung into place means may be employed for locking the's'ame in their rahbet engaging position. For example, in this connection rotatable elements similar to the rotatableelements 23 of the form shown in Fig. v2 may be used, two of which may be shown near'the lower ends of thescreen and others, for example near the centerthereof, as shownat 34L-although it is to be understood that the numberand location of these rotata-ble elements may bevaried to'snit the occasion, and when these screens are to be removed these'rotatable elements mav be turned until the flattened parts are alignedfwith the inner edges'ofithe guide strips 31.

The construction herein described provides a strong and effective guide strip of verv little thickness, requiring only a very narrow groove in the edges of the screen and thereby rendering the screen stronger and much less liable to result in the breaking away of one or the other side of the screen, and furthermore all holes will be effectively closed to insects by reason of the narrow grooves in the sides of the screen and the addition of the caps 16 which engage the folded edges of said guide strips, and at the same time completely close the openings through the centers of the springs 14. Furthermore, the guide strips being of metal may be projected a greater distance beyond the inner edges of the window frames and provide greater distances between the edges of the screens and the edges of the window frames, whereby variations in the sizes of the screens due to warpingor shrinking or expanding thereof will not cause any unnecessary binding of the screens in the window frames. Another advantage of the present construction is in the great saving in labor produced bythis construction, whereby the grooves 3 formed in the window casings may be produced quickly, for example by means of a motor driven saw which may be quickly moved along the-inner edges of said window frames to out said grooves and the guiding strips may then be readily inserted in the grooves without nailing and remain in said grooves indefinitely. It is also to be understood that it is within the scope of theinvention to form the guidingstrips upon the screen and the cooperating guiding elements in the window frame.

The invention is not limited to the specific embodiment shown.

Claims:

1. In combination, a window casing havin grooves formed in the edges thereof, a guide strip formed of metal and folded longi tudinally, said strip being inserted in said groove with the folded edge of said strip protruding from said groove, and spurs formed in said strip adapted to retain said guide strip within said groove. f

2. Incombination, a guide strip for a window. screen, a grooved side member to slide upon said guide strip, helical springs inserted in an edge of said screen, anda collar secured to the outer end of each of said springs and provided with a transverse groove slidably to engage the edge of its guide strip and to close the opening through said spring.

3. In combination, a window screen having a guiding groove in one edge, helical springs arranged at spaced intervals in said grooved edge, transversely grooved. caps for the outer ends of said springs, said grooves arranged to align with said groove and close the openings through said springs, and means detaohably to secure said screen at its opposite edge.

4. The combination, with an outside window casing having saw cut grooves formed longitudinally of the inner edges thereof, of

a guidestrip formed of longitudinally folded sheet material insertedin each of said grooves With its folded edge protruding-from said V groove, and means to secure its guide strips in said grooves.

5. The combination, With an outside Window casing having narrow grooves formed longitudinally of the inner adjacent edges thereof, of guide strips formed of longitudinally folded sheet metal inserted in said grooves with the folded edges protruding and forming screen guides, and means dependent upon the natural resilienc of said folded sheet metal to retain said guide strips in said grooves.

In testimony whereof, I have signed my name to this specification.

JOSEPH E. JOHNSON.

CERTIFICATE OF CORRECTION.

Patent No. 1,824,897. Granted September 29, 1931, to

JOSEPH E. JOHNSON.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 1, line 66, for "spring" read springs; line 85, for "losely" read loosely; page 2, lines 103 and 104, claim .1, for "havin" read having"; page 3, line 2, claim 4, for "said" read its, and line 3, for "its" read said; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 17th day of November, A. D. 1931.

M. J. Moore, (Seal) Acting Commissioner of Patents. 

